• AUD/USD has traded a 24 pip range thus far Tuesday; 0.6367-0.6391

• 0.6391 was also Monday's three-week peak (0.6391 was Feb 24 high too)

• AUD supported by relatively hawkish guidance from RBA's Hunter

• Hunter: RBA still more cautious than market on prospect of more rate cuts

• Kremlin says Trump-Putin to speak between 1300 and 1500 GMT

• Fed rate hold expected on Wednesday. Australian employment data due Thursday

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(Robert Howard is a Reuters market analyst. The views expressed are his own)